In the speaker test, the best Bluetooth and WiFi devices score highly with their rich sound and ease of use. However, only a few offer this complete package. Natural sounding bass, clearly audible details and balanced, lively sound - this is what the perfect speaker should sound like...

The Field 1 delivers solid sound for such a small enclosure. Only the bass and features are lacking.

The Sony Ult Field 1 is a solid all-rounder among compact Bluetooth speakers. Its robust design with IP67 protection makes it a reliable companion for outdoor activities. In terms of sound, it is particularly impressive with the Ult function activated, which adds significantly more life to the sound...

For its size, the ULT Field1 offers rich sound and is a strong alternative to the JBL Flip6.

With the Sony ULT Field 1, the manufacturer delivers a handy and stylish Bluetooth speaker that is particularly pleasing in terms of sound. Especially when ULT mode is activated, it delivers a full and detailed sound with sufficient volume reserves, which is really fun. However, the features are somewhat meagre and high-resolution Bluetooth codecs are unfortunately conspicuous by their absence...